Definition of foretriangle in US English:



  • 1The triangular space between the deck, foremast, and forestay of a sailing vessel.

    • ‘Humphreys has drawn a fairly high-aspect, cutter-optimized sloop rig for the boat with a lot of emphasis on the versatility of the foretriangle.’
    • ‘Boats had low aspect mains, small foretriangles, fractional rigs and no lapping foresails.’
    • ‘If the two boats have similar sized foretriangles you can probably make it work.’
    • ‘More recently in the US it has come to be also used in cases where the foretriangle is enlarged by placement of the mast at a point nearly amidships.’
    • ‘In addition, the dip pole gybe requires another crewmember to adjust the topping lift while the pole is being swung through the foretriangle to the other side of the vessel.’
    1. 1.1 The area of sail within the foretriangle.
      • ‘One nice thing about the high foretriangle is that gybing under spinnaker in heavy air does not demand flawless runner work to keep the mast in the boat.’
      • ‘However, in addition to the mainsail, some manufacturers use the working jib or even a 150% genoa instead of the foretriangle to calculate the total sail area.’
      • ‘Rigs have become so generic these days that it reminds me of the late 1960s when all we saw were masthead, single-spreader rigs with big foretriangles.’
      • ‘Bottom line is I think at least some IOR boats are under-rated; they can sail very well, especially in lighter air where the pinched ends reduce wetted surface and the big foretriangles provide power.’